Magnetic fields in low-mass stars cause starspots [1]}, [2]} and chromospheric emission in lines such as Ca ii H and K [3]}, [4]}, [5]}. ZZ UMa shows evidence for the former phenomenon, and we had an opportunity to observe the latter. We obtained a single spectrum of ZZ UMa on the night of 2022/06/08 using the Intermediate Dispersion Spectrograph (IDS) at the Cassegrain focus of the Isaac Newton Telescope (INT). Thin cloud was present, which decreased the count rate of the observations. We used the 235 mm camera, H2400B grating, EEV10 CCD and a 1 arcsec slit in order to obtain a resolution of approximately 0.5 Å, the maximum currently available with this spectrograph. A central wavelength setting of 4050 Å yielded a spectrum covering 373–438 nm at a reciprocal dispersion of 0.023 nm px\(^{-1}\) . The data were reduced using a pipeline currently being written by the author, which performs bias subtraction, division by a flat-field from a tungsten lamp, aperture extraction, and wavelength calibration using copper-argon and copper-neon arc lamp spectra.
